The recorded history of Texas begins with the arrival of the first Spanish conquistadors in the region of North America now known as Texas in 1519, who found the region occupied by numerous Native American tribes. The name Texas derives from táyshaʼ, a word in the Caddoan language of the Hasinai, which means "friends" or "allies." Native Americans' ancestors had been in what is now Texas, more than 10,000 years ago as evidenced by the discovery of the remains of prehistoric Leanderthal Lady. During the period of recorded history from 1519 AD to 1848, all or parts of Texas were claimed by five countries: France, Spain, Mexico, the Republic of Texas, and the United States of America, as well as the Confederacy during the Civil War.